Fuse



. M. DALY.

FUSE.

APPLICATION FILED JuLY2o,192x,

Patented Nov. 21, 1922.

UNITED STATES snas'rorrnn M. DALY,

GF BRIDGEPORT, CONNECTICUT.

FUSE.

Application sled July 2),

To allen/1011i it in ne! concern.'

Be it known that l, Cinnsrorrrnn M. DALY a citizen ot the "UnitedStates, residing at Bridgeport, in the county of Fairfield and State ottonnecticut, have invented certa-in new sind useful li'nprovenients inFuses, which the following is e. specification.

This invention relates to fuses especially adapted for use in lightsockets.

An important object of this invention is to provide e fuse which muy bedetachably arranged in a light socket between the centrai Contact' ot'the socket and the center contact of the light bulb so that should thelight brezil: and become short circuited all the lights on that circuit'will not go out.

A. fuse constructed in accordance with this invention will eliminate theformation 0i objectionable dashes or arcs which radiate from a lightsoclret when the bulb attached to the socket/is short circuited for anyrea- SOD.; v h

A. further object ot the invention is to pro vide e fuse of.' the classdescribed which may be readily and conveniently attached to a kbulb andwhich extremely chesp to manufacture.

Other objects and sdventages of the invention will be apparent duringthe course of the following' description.

In the accompanying drawing 'forming a part of this application and inwhich like numerals are employed to designate like parts throughout thesame, v

Figure 1 is side elevation of a light socket equipos with the improvedfuse, the socket being; psrtly shown in section.

Figure 2 is 'vertical sectional View through the Figure 3 is YYYien oifuse opened to illustrate the member and the contacts connected to theends of the In the wherein 'for the purpose of illustration shown apreferred embodif ment'of the invention the numeral 5 designates asocket of the usual construction, which socket electrical connectionWitl an electric line designated by the numer l 6. The Wire G may be onebrunch of al circuit having a number of other sockets to which lightsare connected. The bulb 7 which is tnreeded into the socket/is provided'With the usuel center Contact which ordinarily engages the centerContact 8 of the socket whereby the current is transmit- 1921. SerialNo. 486,068.

ted from the socket to the filaments of the lamp. i

ot this application resides inV a. fuse gener.- elly designated by thenumeral 10 and which as illustrated in lligure l is adapted to be'detachably arranged between the inner wall of the socket and the.forward end of the light bulb, The body of the fuse consists of ay pairof preferably integral disks 11 of mica. or other suitable material :indwhich are joined es indicated at l2. The center of each disk is providedwith a metallic con tact 13 having its outer side formed with enenlarged head adapted to be engaged either with the center Contact 8 ofthe socket or witl the center Contact of the attaching porm tion oi thebulb. Since there are two contacts 13 one Contact is engaged with thecontact 8 and the other is engaged with the center con# tact of theligrht bulb. wherebyY the current supplied to the lmnp ispassed-.through a fuse Wire 1l having its ends secured to. the contacts13.

As illustrated particularly in Figure 3 the interiiiedinte portion ofthe fuse Wire 14: is coiled as indicated at 15 and is received Within anarcuate coi'npartment 16 at the outer edge portions ol the disks 11. Thearcuate compartment 16 is formed by pressing; the disks 1l. outwardly attheir adjacent portions. In assemblingl the fuse a suitable powder maybe arranged in the arcuate compartment so as to prevent the radiation ofen are or flash from the fuse when the same blows. An insulating disk 18is provided with an attaching' tongue 19 izni'iedded in one edge of oneof the disks 1l, the said insulfit ing disk 18 being adapted to bearranged between the disks 11 when the fuse is assembled. lt will beseen. that the insulating disk 18 prevents ei'igrafzement ot thecontacts 13 with each other.

ln use the fuse may be detachably arranged Within the socket and whenthe bulb becomes short cironited for any reason the fuse 4Will blowthereby preventing the radiation of arcs or flashes. The fuse is ex-.tremely cheap to manufacture and will prevent an entire circuit frombeing placed out of eircnited.

I claimr- 1,. A fuse comprisingl a pair of integral disks, contactscarried by the disks and having heads on the outersdes of The inventionforming the subject matter commission Whenone'ol the lights is shortilo.

